*HEADING FRICTIONAL PENALTY CONTACT BETWEEN A DEFORMABLE BLOCK OF CPE3 ELEMENTS AND AN ANALYTICAL RIGID SURFACE WITH A SOFTENED ROUGH FRICTION MODEL ** ** DEFORMABLE ELEMENT ** *NODE,NSET=DELEM 101,-5.,0.0 102, 0.0,0.0 103, 0.0,1. 104,-5.,1. *ELEMENT,TYPE=CPE3,ELSET=DELEM 101,101,102,103 102,101,103,104 *SOLID SECTION, ELSET=DELEM, MATERIAL=STUFF 1., *MATERIAL, NAME=STUFF *ELASTIC 3.E7,0.33 *DENSITY 7.3E-4, ** ** RIGID SURFACE ** *NODE,NSET=RMASS 201,5.,-1. *ELEMENT,TYPE=MASS,ELSET=RMASS 200,201 *MASS,ELSET=RMASS 1.0, *RIGID BODY,REF NODE=201,ANALYTICAL SURFACE=RSURF ** *NSET,NSET=NLOAD 104,103 *BOUNDARY 201,1,2 201,6,6 *INITIAL CONDITIONS,TYPE=VELOCITY DELEM,1,200.0 DELEM,2,0.0 *INITIAL CONDITIONS,TYPE=STRESS 101,0.0,-2000.0 102,0.0,-2000.0 *ELSET,ELSET=ODB_ESET DELEM, RMASS *NSET, NSET=ODB_NSET DELEM, RMASS, NLOAD ** ** ANALYTICAL RIGID SURFACE ** *SURFACE, TYPE=SEGMENT, NAME=RSURF START, -7, 0.000 LINE, 5., 0.000 *SURFACE,NAME=DEFORM 101,S1 ** *STEP *DYNAMIC,EXPLICIT ,0.001 *SURFACE INTERACTION,NAME=RSUR_PM *FRICTION,ROUGH,SHEAR TRACTION SLOPE=1.0E+4 *CONTACT DAMPING, DEFINITION=CRITICAL 0.0 *SURFACE BEHAVIOR,NO SEPARATION *CONTACT PAIR,INTERACTION=RSUR_PM,MECHANICAL CONSTRAINT=PENALTY DEFORM,RSURF *DLOAD 102,P2,2000.0 ** ** Output requests (QA_TEST) ** *OUTPUT, FIELD, NUMBER INTERVAL=4, TIMEMARKS=YES *NODE OUTPUT U, ** *OUTPUT, HISTORY, TIME INTERVAL=2.5E-4 *ENERGY OUTPUT,VARIABLE=PRESELECT ** *END STEP